| 摘要 |
The system provides for the display of a shadow region 3 associated with a three dimensional cursor 2. A cursor control device is used to move the cursor in three dimensions on the display screen, wherein the shadow region is displayed on a shadow plane 4 and follows the movement of the cursor. A shadow represented by an opaque face cursor or a translucent face cursor is provided. The system can detect situations where either the cursor 2 or the shadow 3 are not visible. <IMAGE> |
